/*=================================================================
	General
==================================================================*//*
* px:
*       - base font size, not influenced, relative to screen resolution.
*       - Use in html to avoid browser setting
* rem:
*       - based on html font size, influenced by browser font size setting.
*       - Use in modules that doesn't change with the text size
* em:
*       - based on parent's font size.
*       - Use in elements that change with font size (h1, h2, .... pre, )
*/
html, body {
    height: 100%;
}
body {
    display: flex;
    flex-direction: column;
    height: 100vh;
    margin: 0;
    font-family: 'Arial', 'sans-serif';
    font-size: 1.2rem;
}
#header_helpers {
    width: 98%;
    display: flex;
    flex-direction: row;
    justify-content: center;
    text-align: center;
    border: solid 1px green;
}
#header_helpers_text {
    font-size: 0.5em;
}
.hidden { display: none; }
.clear { clear:both; }

h1 {
    margin: 0 0 30px 0;
    text-align: left;
    font-size: 2.5rem;
    font-weight: bold;
    letter-spacing: 1.5px;
    /*font-weight: 500;*/
    line-height: 1.2;
    color: var(--primary-color);
}
h1 span {
    color: var(--red);
}
h1 br {
    margin-bottom: 40px;
}
h2 {
    margin-bottom: 30px;
    line-height: 1.5;
    color: var(--primary-color);
    font-size: 2rem;
    font-weight: 500;
    /*border: solid 1px green;*/
}
h3 {
    margin: 20px 0;
    color: var(--primary-color);
    font-size: 1.37em;
    font-weight: 400;
    /*border: solid 1px green;*/
}
h4 {
    /*border: solid 1px green;*/
}
@media (min-width: 880px) {
    h1 {
        margin: 30px 0 10px 0;
        font-size: 3rem;
        letter-spacing: 1px;
    }
    h2 {
        margin: 30px 0 10px 0;
        font-size: 2.2rem;
        letter-spacing: 1px;
    }
}
@media (min-width: 1200px) {
}
.alert-danger {
    background-color: #ffcecb;
    border: solid 2px red;
}
.is_wrong {
    border: solid 2px red;
}